Jacketed bullet.



U. H. A. F. L. ROSS.

- JACKETED BULLET.

APPLICATION FILED JAN. 9, 1912.

Patented Apr. 15, 1913.

, iirurnn CHARLES HENRY AUGUSTUS FREDERICK LOCKHART ROSS, OF BALNAGO'WN CASTLE, COUNTY OLE ROSS, SCOTLAND.

JACKETED BULLET.

Application filed January 9, 1912.

Specification of Letters Patent.

Patented Apr. 115, 191*. Serial No. erase-7.

1 '0 all whom it may concern Be it known that 1, CHARLES HENRY AU GUSTUS FREDERICK Loom-Lina Ross, a subject of the King of England, residing at Balnagown Castle, county of Ross, Scotland, have invented certain new and useful Improvements in Jacketed Bullets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to jacketed bullets, and has for its objectto produce a bullet in which the jacket will completely inclose the core at both ends, while at the same time, providing a tapered nose and an accurately shaped and smooth outer contour for the bullet.

To these ends the invention consists in the novel details of construction and combinations of parts more fully hereinafter disclosed and particularly pointed out in the claims. a t

Referring to the accompanying drawings forming a part of this specification in which like numerals designate like parts in all the views :Figure 1 is a diagrammatic sectional YlQW showing one of the steps of drawingthe metal from which the jacket is made; Fig. 2 is a View similar to Fig. 1, showing the step of filling the core into the tube illustrated in Fig. l, and also forming a concavity in the bottom of said tube; Fig. 3 is a diagrammatic View illustrating one of the steps of closing in the open end of thelubc by a swaging action; Figs. 4-, 5, (3 and 7 are views similar to Fig. 3 showing the successive swaging steps up to the complete closure over the core of the sharppointed end of the bullet; Fig. 8 is an elevational view, partly in section, of a finished bullet made in accordance with my invention; and, Fig. 9 is a View similar to Fig. 8 illustrating a modified form of a completed bullet.

1 indicates any suitable metallic casing or jacket preferably of steel, cupro-nick l, or other alloy of nickel; and 2 indicates any suitable filling for the bullet, but I prefer to employ lead.

As is well known, in the metal jacketed bullets heretofore proposed, either the nose end of the bullet has been closed over the lead core, and the base end of the bullet left open, or partially open, or else the base end or" the bullet has been closed by extending the jacket thereover, and the nose end of the bullet left open. l Vhen the base end of the bullet is left open, it is further well known that unless the nose end is sufficiently strengthened, the pressure oi the powder gases, which often exceeds fifteen tons to the square inch, is ait to force the core 2 through the nose end of the bullet, while the jacket is passing along the riding, and thereby cause what is technically known as stripping. in order to avoid this, the jacket must be made of a specific strength and thickness, and to further strengthen the jacket, the rim of its base is frequently turned inward. On the other hand, when the nose end of the bullet is left open, it is practically essential in high powered bullets to extend the jacket over the base end,

for otherwise the powder gases would force the core through the nose end and cause stripping at practically every shot. Further, it is well reoogi'iized that if accurate shooting is to be had, the metal jacket must be a drawn one in order that it may accurately fit the ritling, and further, when the jacket is drawn, it is mucl. stronger for a given weight of metal and will resist much harder usage than would be the case should the jacket be cast.

Prior to my invention, there seems to have been no method known of filling a drawn jacket with a core, and finishing a high powered accurately shaped bullet with both oi its ends closed. I l he production of such a bullet, however, not only enables one to secure all the qualities of the present high powered bullet, but it also enables less metal to be used in the jacket for the same strength, or a greater strength to be possessed by the jacket for the same amount of metal. lt turther enables one to accomplish the very important result of con'ipletely filling the jacket by the metallcore 2 is illustrated in Fig. 8, or in only partially filling the acket by said core, as is shown in Fig. 9. In the first instance, a military bullet of high penetrati e pow r, is produced, while in the second instance, an expanding bullet -tor sporting purposes is produc d. and without any additional expense.

In order to make clear just how bullets such as those disclosed in Figs. 8 and 9, can be produced, their method of'inann'tacture is briefly disclosed as follows ihe metal complefc lv igh'" I the 1 5 are 1 ammat Hang ase 15 just h mung 1 2f f-sund email i 1.?

the co is (let sary to fil is co nplet number 0;

sued a 1m urpose to be order d h Cami/y larger 

